U2352A Datasheet, PDF (8/25 Pages) Keysight Technologies – USB Modular Multifunction Data Acquisition Devices

High density multifunction USB DAQ (continued))
General purpose digital counter
Maximum count
Number of channels
Compatibility
Clock source
Base clock available
Maximum clock source frequency
Input frequency range⁴
Pulse width measurement range
Analog trigger
Trigger source
Trigger level
Trigger conditions
Trigger level resolution
Bandwidth
Input impedance for EXTA_TRIG
Coupling
Overvoltage protection
Digital trigger
Compatibility
Response
Pulse width
Calibration⁵
On board reference
Temperature drift
Stability
General
Remote interface
Device class
Programmable interface
(2³¹ – 1) bits
Two independent up/down counter
TTL
Internal or external
48 MHz
12 MHz
0.1 Hz to 6 MHz at 50% duty cycle
0.167 μs to 178.956 s
All analog input channels, External analog trigger (EXTA_TRIG)
±Full scale for internal; ±10 V for external
Above high, below low, and window (software selectable)
8 bits
400 kHz
20 kΩ
DC
Continuous for ±35 V_maximum
TTL/CMOS
Rising or falling edge
20 ns minimum
5V
±2 ppm/°C
±6 ppm/1000 hrs
Hi-Speed USB 2.0
USBTMC-USB488
Standard Commands for Programmable Instruments (SCPI) and IVI-COM
1 _{When multiple channels are used in the U2355A or U2356A, the sampling rate of each channel is the maximum sampling rate divided by the number of channels used.}
For multiple channels used in the U2331A, the sampling rate of each channel = (1 MSa/s) / number of channels used.
2 _{System Synchronous Interface (SSI) and Star trigger commands are used when modular devices are used in the product chassis.}
3 _{Maximum external reference voltage for analog output channels (AO_EXT_REF) is ±10 V.}
4 _{Measurement frequency’s resolution:}
= 12 MHz/n, n = 2, 3, 4, 5, ..., 120 M
= 6 MHz, 4 MHz, 3 MHz, 2.4 MHz, 2.0 MHz, ..., 0.1 Hz (up to six decimal points)
5 _{20 minutes warm-up time is recommended.}
8